Standard No.:	GB/T 36994-2018
Chinese Name:	风力发电机组 电网适应性测试规程
English Name:	Wind turbines—Test procedure of grid adaptability
Professional Classification:	F11 Wind energy
ICS Classification:	27.180
Issued by:
Issued on:	2018-12-28
Implemented on:	2019-07-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:	12000 words
Price(USD):	360 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This standard specifies the test content, test equipment, test procedures and test report content of grid adaptability test for wind turbine generator system (hereinafter referred to as “wind turbines”).

This standard is applicable to the grid-connected wind turbines.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 12325 Power quality - Deviation of supply voltage
GB/T 12326 Power quality - Voltage fluctuation and flicker
GB/T 14549 Quality of electric energy supply - Harmonics in public supply network
GB/T 15543 Power quality - Three-phase voltage unbalance
GB/T 19963 Technical rule for connecting wind farm to power system
GB/T 24337 Power quality - Interharmonics in public supply network
JJF 1059.1 Evaluation and expression of uncertainty in measurement

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1
grid adaptability of wind turbine
the response characteristics of wind turbines in the case of grid voltage deviation, frequency deviation, three-phase voltage unbalance, voltage fluctuation and flicker, and harmonic voltage

3.2
point of connection of wind turbine/point of test of wind turbine
the point at which the voltage or frequency variation occurs, which is the connection point between the grid disturbance generating device and the high voltage side of the step-up transformer of wind turbine

3.3
no-load testing
a test for the voltage or frequency variation generated by the test device at the point of test of wind turbine in the event that the wind turbine is disconnected from the grid

3.4
on-load testing
a test for the voltage or frequency variation generated by the test device at the point of test of wind turbine in the event that the wind turbine is connected to the grid

3.5
inertia response of wind turbine
the characteristic that the active output of the wind turbine varies with time after the frequency discontinuity of grid, which is referred to as the inertia response